{"product_id":"custom-age-head-stud-kit-6-0l-powerstroke","title":"Custom Age Head Stud Kit 6.0L Powerstroke","description":"The ARP 250-4205 Custom Age 625+ Head Studs are high-performance fasteners engineered to significantly reduce or eliminate head gasket failures in demanding diesel applications. Designed for 2003-2007 Ford 6.0L Powerstroke engines, these studs provide superior clamping force required to withstand higher combustion pressures, preventing cylinder head lift.\n\nConstructed from ARP's proprietary Custom Age 625+ material, these head studs boast exceptional strength, with a tensile strength ranging from 250,000 to 280,000 PSI and a yield strength between 235,000 and 255,000 PSI. This advanced material offers excellent temperature stability and notch toughness, ensuring reliability under extreme operating conditions. The kit includes twenty parallel ground washers, twenty 8740 chrome moly steel 12-point nuts, and ten 8740 bolts, along with ARP Ultra-Torque Fastener Assembly Lubricant. The studs are centerless ground for perfect concentricity and feature ends that are broached for easier installation.\n\nThese head studs are recommended for high horsepower and competition engines, particularly those operating above 600-650hp and utilizing modifications such as large injectors, compound turbochargers, nitrous oxide systems, or water-methanol injection, as well as those subjected to heavy track use. They are proudly made in the U.S.A. at ARP's facility in Santa Paula, California.","brand":"ARP","offers":[{"title":"Default Title","offer_id":52686985232696,"sku":"ARP250-4205","price":1365.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/661167926.webp?v=1784879203","url":"https:\/\/store.motormia.co\/products\/custom-age-head-stud-kit-6-0l-powerstroke","provider":"MOTORMIA","version":"1.0","type":"link"}